Keyboard control

[arkomnv]

could any1 give me a code example or a link


about how i can control a button click event with a keypress on my keyboard


i am trying to make a screen keyboard that can be countrolled with the mouse but if a lettre or number on the keyboard is pressed i would like to handle the some line of code

i tryed to make it work with a override sub but it didnot work

could some1 pls help me out


THX

 

[TipGiver]

To catch keys pressed, no matter what control has the focus, set the keypreview property of the form to true and write code in the appropriate event handler of the form.

 

[arkomnv]

could you give me a little code example on that code


thx

 

[TipGiver]

First, i need to ask:
> If you click with the mouse a button (e.g. "d") you want to do something like: textbox1.text &= button_d.text ?

 

[Antithott]

Hi, i dont know if this is 100% formated the right way, but it should work.

- Anti


Public Class Form1

Private Sub Form1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyUp
If e.KeyCode = Keys.A Then
If TextBox1.Text = String.Empty Then
TextBox1.Text = "a"
Else
TextBox1.Text = TextBox1.Text & "a"
End If
End If
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.KeyPreview = True
End Sub


End Class

 

[Antithott]

Forgot to say what im doing:

1. I set Keypreview = true in the form1_load event so the form will look for buttons pressed on the keyboard, else it will ignore it and let controls on the form react.

2. I create a Form1 event called KeyUp. It the event that will fire if a key is pressed. Next i say if the "a" button is pressed it should write a "a" in the textbox.

KeyUp only fires when a key is released
KeyDown fires when the key is pressed down.